Kramer's film work includes building models for Superman III, Return of the Jedi, Supergirl, and King David (with Edward Woodward). As a sculptor, he has contributed to museum displays such as the Illinois Holocaust Museum and Education Center (architectural models of the Warsaw and Auschwitz ghettos), Singapore Science Museum, and the Los Angeles Museum of Tolerance. He has also painted, exhibiting for the Nelson Bicentenary in 2005 and at various galleries.